Marijuana experts discuss the rise of potent "sexually frustrated" cannabis plants, the quest for consistency in weed strains and the history of hemp.
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Cory Booker and others discuss how slavery, housing discrimination and centuries of inequality have compounded to create a racial wealth gap.
2018 • Economics
Scientific feat or terrifying social experiment? Specialists in the field discuss the high stakes and ethical controversies of gene editing.
2018 • Technology
Cryptocurrency has made people billionaires, but is digital cash the next revolution? Learn about this anonymous currency and why it's so coveted.
2018 • Economics
Explained examines why diets are often unsuccessful. It looks at the science that suggests that low carb, low fat, and body type diets as well as supplements and detoxification regimes simple do not work in helping most people lose weight. While the diet industry pushes us to avoid calories the food industry encourage us to eat more of them.
2018 • Health
Does the stock market accurately reflect the status of the economy? Finance specialists discuss market history, valuations and CEO incentives.
2018 • Economics
The term eSports is short for "electronic sports". It is introduced to describe competitive video gaming. What's competitive video gaming? It's basically just people playing video games in some form of competition.
2018 • Technology
Explained examines the possibility of extraterrestrial life and looks at why we have not yet found evidence for its existence despite efforts to look for it. It considers the Fermi paradox which suggests that given the vastness of the universe that there should be a great deal of extraterrestrial life in our galaxy. It also consider conspiracy theories about U.F.O.
2018 • Astronomy
The story of the exclamation point. How it came to be and are we overusing it today?
2018 • Design
Explained looks at the popular English sport of cricket. First developed in the mid-1800s, cricket has grown into one of the most popular sports in the world. It looks at the complicated and confusing rules behind the game and examines how the British Empire exported the game to its colonies including the West Indies and India. It also looks at different forms of the game including test cricket and Twenty20 cricket.
2018 • People
Scientists are working to understand and even slow the aging process.
2018 • Health
The female orgasm is more elusive when a man is involved. Discover the reasons why -- and how women are embracing hands-on solutions.
2018 • Health
Political correctness can sometimes feel like a tug-of-war between inclusivity and free speech. Experts discuss the concepts behind the fraught term.
2018 • People
Hillary Clinton and Anne-Marie Slaughter discuss the cultural norms at the center of the worldwide gender pay gap, including the "motherhood penalty"
2018 • Economics
The global water crisis is at an inflection point. How do we price our most valuable resource, while also ensuring access to it as a human right?
2018 • Environment
There are more billionaires than ever. But how does this vast accumulation of wealth affect the world?
2019 • Economics
What goes on inside an animal's mind? Figuring out how they think and feel might just be the key to understanding our own place in the world.
2019 • Nature
It began with bloomers. Then came spandex. Now we sport leggings and other activewear everywhere. How did comfy, casual clothing go mainstream?
2019 • Lifehack
Computer code now controls how we live. But how did these programming languages evolve? And how can they be used to build a new and better world?
2019 • Technology
(This episode is from before the outbreak of Covid-19 pandemic) - In this episode from 2019, experts including Bill Gates discuss the history of pandemics, how they spread and what could be done to contain them.
2019 • Health
The planet's current rate of meat consumption is unprecedented -- and becoming unsustainable. In the future, will meat alternatives be the answer?
2019 • Health
Oil led to huge advancements - and vast inequities. As the planet warms, why is it so hard to turn away from fossil fuels, and can it be done in time?
2021 • Environment
We'll find out how nature is incredibly inventive and has produced two unique mechanisms of natural construction that have fascinated scientists for centuries; weaving in birds and silk.
S2E8 • Natural Curiosities • Nature
Can animals count? This is a question that has intrigued and fooled investigators for a long time. Just over 100 years ago, a German horse called Hans was declared a mathematical genius but all was not as it seemed. And strangely, some bamboos around the world flower exactly at the same no matter where they are. Are they counting down the years?
S4E4 • Natural Curiosities • 2018 • Nature
Nearly twice the size of the United States, Russia is the biggest country on Earth. From the subtropics to the arctic and the Atlantic Ocean to the Pacific; giant lakes, active volcanoes and endless forests.
2020 • Nature
Intelligence and adaptability allow primates to tackle the many challenges of life, and this is what makes our closest relatives so successful. This resourcefulness has enabled primates to conquer an incredible diversity of habitat. Hamadryas baboons live on the open plains of Ethiopia in groups up to 400 strong. Strength in numbers gives them some protection from potential predators. But, should their path cross with other baboon troops, it can lead to all-out battle, as males try to steal females from one another, and even settle old scores. Japanese macaques are the most northerly-dwelling primates and they experience completely different challenges. Some beat the freezing conditions by having access to a thermal spa in the middle of winter. But this privilege is only for those born of the right female bloodline. For western lowland gorillas, it's the male silverback that leads his family group in the rich forests of the Congo basin. He advertises his status to all with a powerful chest-beating display. Most primates are forest dwellers, and one of the strangest is the tarsier – the only purely carnivorous primate. As it hunts for insects the tarsier leaps from tree to tree in the dead of night, using its huge forward-facing eyes to safely judge each jump. Good communication is essential for success in primate society.
The wildlife inhabiting the world's oceans, from the shallow seas of the tropics, where predators like the lionfish can become the prey to one of the world's oddest hunters, to the greatest depths, where a massive siphonophore, longer than a blue whale, and a gulper eel with huge jaws are captured on film using specialised vessels designed to withstand the pressure. The episode also features the mating dances of mobula rays and the symbiotic relationship between Columbus crabs and turtles.
S1E2 • Planet Earth III • 2023 • Nature
In this fourth episode, Iolo Williams explores how birds in Wales have adapted to living alongside us, making use of our buildings, parks and gardens and even the waste we throw away. One of the most notorious urban birds is the gull and Iolo explains why these very adaptable and intelligent birds are doing so well in Cardiff
S1E4 • Secret Life of Birds • 2012 • Nature